The DPS unit is really easy to change out yourself, but you'll have to remove the entire front of the spyder (including trunk and lower metal trunk support) and all fairings pieces from the seat forward. Then you'll have to remove two hard to get to allen head bolts that clamp the upper steering rod bearing to the frame. Then you'll need to remove one bolt located under the rubber boot that clamps the steering rod to the DPS input shaft and push the steering rod up and off the shaft. This might be a little difficult, but if I can do it with a corroded shaft, then you can do it too! Next you'll need to remove the tie rods. What I did was remove the tie rods and not the tie rod ends at the DPS and spindle. So much easier. Then you'll need to remove the right side upper a-arm from the frame. There are two or three electrical connections that need to be removed and a total of 4 bolts that need to be loosened (not taken off) at the front of the frame before you can lift the DPS up and out through the rear then from the area where the right a-arm was. Not sure if the new DPS unit comes with the position sensor attached to the DPS unit on the bottom. If it does, then installation is reverse of removal. I don't know about the BUDS part, but I do have the service manual which says you have to calibrate everything. If taking your time, you should be able to do everything within several hours. Goodluck!